I recently got a mini lathe. It’s been quite useful for a lot of things. The other day I was getting ready to anneal some brass my usual way by putting it in a socket turned by a drill motor and heated with a propane torch.
Then I thought why not try to use the mini lathe. I took a length of a three piece cleaning rod and chucked it in the lathe. I installed a used bronze brush that would slip into the case easily. Turned on the lathe to a speed I liked and held the torch on it. It worked great. A lot easier than the drill and socket method in my opinion.
Maybe someone else would like to try it.